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High-precision creep fatigue crack propagation testing machine

A fatigue crack growth, high-precision technology, applied in the field of high-precision creep fatigue crack growth testing machine, can solve the problem of high cost

Inactive Publication Date: 2020-04-24
珠海市三思泰捷电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conventionally, it is done on a special fatigue testing machine, which is relatively expensive. Usually, a COD gauge is used to test the crack growth rate at room temperature.

Method used

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  • High-precision creep fatigue crack propagation testing machine

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Embodiment Construction

[0018] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0019] refer to figure 1 , a high-precision creep fatigue crack growth testing machine includes a DC bias power supply, a voltage meter, and a test host, one of which includes a high-temperature CT tensile tool, a high-temperature furnace observation window, and a split-type high-temperature Furnace (1200 ℃), high temperature furnace rotating bracket, electronic universal test host, CCD camera rotating bracket, CCD camera, temperature control box and temperature control...

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Abstract

The invention discloses a high-precision creep fatigue crack propagation testing machine which comprises a direct-current bias power supply, a voltage instrument and a testing host. The testing host comprises a high-temperature CT stretching tool, a high-temperature furnace observation window, a split high-temperature furnace (1200 DEG C), a high-temperature furnace rotating bracket, an electronicuniversal test host, a CCD camera rotating bracket, a CCD camera, a temperature control box, a temperature control system, a test control system and software. A crack propagation test of a high-temperature alloy material in a high-temperature environment is realized by improving a conventional static electronic universal testing machine and adding software and hardware.

Description

technical field [0001] The invention relates to the field of testing equipment, in particular to a high-precision creep fatigue crack growth testing machine. Background technique [0002] With the in-depth research of new materials in China, scientific research institutions have continuously increased their research requirements for high-temperature alloy materials and crack growth tests in high-temperature environments in important fields such as aviation and nuclear power. Conventionally, it is completed on a special fatigue testing machine, which is relatively expensive. Usually, a COD gauge is used to test the crack growth rate at room temperature. If it can be improved on the basis of the conventional static electronic universal testing machine, and the above-mentioned test process can be realized through the addition of software and hardware, it will have great advantages in terms of cost and feasibility. This scheme has been realized and applied in the user site of U...

Claims

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Application Information

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IPC IPC(8): G01N3/18G01N21/88
CPCG01N3/18G01N21/8851
Inventor 焦东军
Owner 珠海市三思泰捷电气设备有限公司
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